<input type="file" (change)="fileChange($event)" multiple />

<ul>
  <li>
    jsonPostBody传值：<button (click)="jsonPostBody()">jsonPostBody</button>
  </li>

  <li>
    formPostBody传值：<button (click)="formPostBody()">formPostBody</button>
  </li>

  <li>
    formPostQuery传值：<button (click)="formPostQuery()">formPostQuery</button>
  </li>

  <li>
    postFormUserModel传值：<button (click)="postFormUserModel()">
      postFormUserModel
    </button>
  </li>

  <li>getPath传值：<button (click)="getPath()">getPath</button></li>
  <li>getQuery传值：<button (click)="getQuery()">getQuery</button></li>
</ul>
